protected LexicalInfo ToLexicalInfo(antlr.IToken token)
{
int line = token.getLine();
int startColumn = token.getColumn();
int endColumn = token.getColumn() + token.getText().Length;
String filename = token.getFilename();
return new LexicalInfo(filename, line, startColumn, endColumn);
}
void OnParserError(antlr.RecognitionException error)
{
var location = new LexicalInfo(error.getFilename(), error.getLine(), error.getColumn());
var nvae = error as antlr.NoViableAltException;
if (null != nvae)
ParserError(location, nvae);
else
GenericParserError(location, error);
}
public static LexicalInfo ToLexicalInfo(antlr.IToken token)
{
return new LexicalInfo(token.getFilename(), token.getLine(), token.getColumn());
}
void OnParserError(antlr.RecognitionException error)
{
LexicalInfo data = new LexicalInfo(error.getFilename(), error.getLine(), error.getColumn());
antlr.NoViableAltException nvae = error as antlr.NoViableAltException;
if (null != nvae)
{
ParserError(data, nvae);
}
else
{
_context.Errors.Add(CompilerErrorFactory.GenericParserError(data, error));
}
}
antlr.IToken CreateToken(antlr.IToken prototype, int newTokenType, string newTokenText)
{
return new BooToken(newTokenType, newTokenText,
prototype.getFilename(),
prototype.getLine(),
prototype.getColumn()+SafeGetLength(prototype.getText()));
}
void FlushBuffer(antlr.IToken token)
{
if (0 == _buffer.Length) return;
string text = _buffer.ToString();
string[] lines = text.Split(NewLineCharArray);
if (lines.Length > 1)
{
string lastLine = lines[lines.Length-1];
// Protect against mixed indentation issues
if (String.Empty != lastLine) {
if (null == _expectedIndent) {
_expectedIndent = lastLine.Substring(0, 1);
}
if (String.Empty != lastLine.Replace(_expectedIndent, String.Empty))
{
string literal = _expectedIndent == "\t"
? "tabs"
: _expectedIndent == "\f"
? "form feeds" // The lexer allows them :p
: "spaces";
throw new TokenStreamRecognitionException(
new RecognitionException(
"Mixed indentation, expected the use of " + literal,
token.getFilename(),
token.getLine(),
// Point exactly to the first invalid char
lastLine.Length - lastLine.TrimStart(_expectedIndent[0]).Length + 1
)
);
}
}
if (lastLine.Length > CurrentIndentLevel)
{
EnqueueIndent(token);
_indentStack.Push(lastLine.Length);
}
else if (lastLine.Length < CurrentIndentLevel)
{
EnqueueEOS(token);
do
{
EnqueueDedent();
_indentStack.Pop();
}
while (lastLine.Length < CurrentIndentLevel);
}
else
{
EnqueueEOS(token);
}
}
}